Ignition device for gas stoves



May 16, 1933.

c. E. METHUDY IGNITION DEVICE FOR GAS STOVES Filevd Aug. 27, 1931Patented May 16, 1933 i Y UNITED STATES PATENT OFFICE CARL E. METHUIDY,OF ST. LOUIS, MISSOURI, .ASSIGNOR TO METHUDY AUTOMATIC LIGHTER C0., OFEAST ST. LOUIS, ILLINOIS, A CORPORATION OF ILLINOIS IGNITION DEVICE FonGAS sfrovns Application inea August 27, 1931. serial No. 559,622;

This invention relates to ignition devices burner is formed with aspeeial port 5 below for gas stoves. I the top Walls of said burnersthrough which My prior Patent, No. 1,675,899, of July gas is dischargedinto the ignition device, 3, 1928, discloses an automatic igniter forgas which is the subject of the present invention.

5 stoves and the like, whereby gas is received A pilot light casing 6 ismounted adjacent 55 and conducted from the usual burner or to the burner1 or in proper relationship to burners of a gas stove to the casing of aconthe cluster of burners. A pilot light burner stantly 'burning pilotlight and is ignited by tip 7 extends upwardly into the lower portionthe constantly burning pilot light, and whereof the casing 6, and isconstantly supplied Io by a pressure Wave of ignition is conducted withgas through a pipe 8, so that the gas at 6C from the pilot light to theusual burner or the burner tip 7 is constantly burning. This burnerseffectively to ignite the gas emerging device is appropriatelydesignated as a onfrom the ports in said burners. stantly burning pilotlight device.

The present invention relates to igniters The casing 6 is provided witha covery 9 113 of the general type mentioned and has for its havingacentral hole or opening 1G above the 65 objects to provide a bettermeans for effecting constantly burning pilot light device 7 and amixture of air and gas passing toward the also having a series of spacedholes 11, all of pilot light easing so as to obtain quicker which holesexpedite the escape of burnt .gases action oi combustion back to theburner or from the pilot light casing. The cover 9 burners from thep-ilot light casing; and to covers and protects lthe casing and to anex- 7' provide a .construction permitting greater tent prevents foreignsubstances and liquids tolerance in the adjustment of the device Withfrom coming into Contact with the constantly respeetto the usual 'burneror burners of the burning pilot light and from entering the gils SOVQ- ycasing.` The cover also serves to an extent to f3 AHOEI' Obie@ 0f theUIVGOH S t0 PTU- protect the constantly burning pilot light de- 'Z5 videan improved device of the type and eharvice and prevent the same frombeing extinacter mentioned for igniting gas passing to guished by forcesthat might @hm-Wise 8X- the usual pilot light device from a remotetinguish said light. source, such, for instance, as from an oven Tubes12, 13, 14 and 15 are Connected with 3 bm'ne the casing 6 and extendtherefrom toward the 8*(- Otherobjects and advantages ot' theinvenrespective burners 1 and 2 and have dared or tion Will appear fromthe following descripenlarged portions 16 at their outer ends adj'ation, reference. being,T made to the accompanycent to the respectiveports 5 and in a position lng drawing, in whichto receive gas dischargedfrom said ports 5.

35 Flggl 1S a plat VlfWs Wlth Parts in SGCOD, |These flared or enlargedportions 16 serve 85 0f my lmP'OVed lgmlol deV- e the double function ofreceiving the gas and Fig. is an enlarged cross sectional view Causingaquantity ef air to be come mixed approximately' on the line 2-2 ofFig. 1. with the gas and causing the mixture of air My improved ignitiondevice is designed and gas t0 enter the tubes 12, 13, 14.- and 15 a andadapted to be mounted in a gas stove and to page therethrough to thecasing 6 in 95' lrrliidlns" 1 gesbmner l, 01" Clust-er 0f ses which theconstantly burning piiotlight 7 is burners comprising a burner l andadditional enclosed.

burners .2 arranged in a predetermined re- 1n any desired relationship,the tubes 12,

lationship. These burners have top walls 13, 14 and 15 have on theirinner sides projec- 3 provided with numerous ports 4 -constituttions orrimes 17 which break up the more i mgA outlets for gas supplied to saidburners dense bodies of gas and cause a better mixture from any usual orappropriate gas manifold, of air so as to improve the combustiblequalwhich 'are devices familiarin this art. lThe ities of the gas. portst open upwardly through the top walls The ends of the tubes 12, 13, 14and 15 may wo vof the burners.A One sideor end Wall of each be supportedby or engaged with'projections 18 in connection with the respectiveburners 1 and 2.l These projections 18 cooperate to support the ignitiondevice in proper relationship to the several burners, so that gaspassing from the ports 5 Will necessarily en ter the ends of the tubesand become mixed With air to provide a readily combustible mixturebefore said mixture reaches the pilot lightdevice.

The mixture of gas entering the pilot light device through any of thetubes is immediately ignited and a combustion pressure Wave is forcedback through the tube containing the gas, causing ignition of the gas atthe port 5 and forcing the flame of combustion intol contact With thegas passing from a number of the ports 1. Thus, the gas at the usualburners is quickly ignited and the gas continuing to pass from the port5 is kept ignited at said port, so that substantially no amount of gasenters any ofthe tubes leading to the pilot light device.

A tube 19, constituting a part of a connection for igniting an ovenburner (not shown) has one end received Within a socket 20 open-` inginto the pilot light casing 6 opposite a pressure relief port 21 at theopposite side of the pilot light casing. A gas supply pipe 22communicates With a jet 23 Within a frame device 24. Gas is deliveredlfrom the oven burner (not shown) to the jet device 23 through a pipe 25.And gas is delivered from the frame device 211 to the pilot light casingthrough the tube 19, one end of Which is mounted in a socket 26 openinginto the frame device 24.

The'Wall of the tube 19 is provided With a number of spaced inwardlyextended rifiles 27 Which cause a better mixture of air and gas passingfrom the jet. device 23 to the pilot light device 7.

l consider it preferable that the inner edges of the riiiles 17 and 27terminate short of the axes of the tubes in which the riiiles areprovided. This leaves a continuous central passage through each of thetubes With riles along one or more of the sides of each tube. Theseriffles break up the bodies of gas along and adjacent to the Walls ofthe tubes, create agitation, and effect better and more complete mixtureof the gas and air.

The riiiles may be of different shapes, a number of shapes being zhown.The riiiies along the different walls of each tube are in staggeredrelationship with respect to the riffles along the opposite wall, vsothat the riflies may be defined as being arranged in alternating series.

The construction and arrangement of the device may be varied otherwisethan as specifically indicated Without departure from the nature andprinci le of the invention. I

do not restrict mysel in any unessentialrespects, but what 1 claim anddesire to secure C5 by Letters Patent is:

1. A device of the character described comprising a constantly burningpilot light device, a burner member spaced from said device, means forconducting gas to said burncr member, a tube for conducting gas fromsaid burner member to said pilot light device, and series of spacedriffles in said tube, the rifiies of each series being staggered andalternating With respect to the riifles of the other series.

2. A device of the character described cmi'iprising ignition means, aburner member spaced from said ignition means, a pipe for conducting gasto said burner member, a tube for conducting gas from said burner memberto said ignition means for ignition thereby and for directing the flameof ignition from said ignition means to said burner member, and seriesof rifiles in said tube and along opposite Walls thereof and havingtheir inner edges terminating short of the axis of said tube, theritiies of each series alternating With the riiies of the other series.

v CARL ll. METHUDY.

